Device for atomizing and drying or evaporating milk and other liquid substances



P. IVIU'LLER.

DEVICE FOR ATOMIZING AND DRYING 0R EVAPORATING MILK AND OTHER LIQUID SUBSTANCES.

APPLICATION FILED FEB; 24, 1920.

1 87,4 A5 Patenmd Nov; 11.5 1921,

warren stares PHILIP? MD'LLER, F LEIPZIG, GERMANY.

earner one nnvron FOR ATOMIZING Ann DRYING on. nvaronarme MILK AND ornna man-m SUBSTANCES. v

I sectional area than trated citizen of Germany,

M. Specification of Letters Patent.

To all whom-it may concern.

Be it known that I, PHILIP]? MtiL'nER, a residing at Leipzig, Germany, have invented certain new and useful Improvements in Device for Atom izing and Drying or Evaporating Milkand other Liquid Substances, (for which I have filed applications in Germany, June 18, 1917; Holland, May 27, 1918; Great Britain, June 18, 1918; Roumania, July 6, 1918; Italy, June 14, 1918; Denmark, June 21, 1918,; Sweden, June 27, 1918,- Norway, June 28, 1918; Finland July 17, 1918; France, Nov. 4, 1918, and elglum, July 20, 1918,) of which the following is a specification. My present invention relates toapparatus for drying or evaporating milk and the like liquid substances. It is the object of my in vention to provide an improved apparatus by means of which milk or other liquid substances can be dried or evaporated by first atomizing the substance to be treated 1n any well known manner by means .of a pressure medium of a gaseous nature, and thereafter subjecting the atomized substance to the drying action of a gas capable of promoting the action of drying or evaporation. With this object in view my invention consists of a discharging tube extending downward from a container of liquid, and a feeding member for a gaseous pressure medium, which feeding member being of a smaller said discharging tube is disposed to extend into the opening of said discharging tube. The feedlng member is just below the opening of said disk charging tube provided with a plurality of openings for the emersion of the pressure medium and is preferably surrounded by a second tube which ends a certain distance below said emersion openings and serves as a feeding tube for a gas capable of promoting thedrying or evaporation of the atomized substance.

In the accompanyingdrawing I have illusan embodiment of my invention, by way of example, in a sectional elevation. Referring to the drawing, a designates a container for the substance to be dr1ed such, for lnstance, as milk. The milk flows out of the container through the discharge tube 6 within the bottom of said container. Into the opening at the lower end of said discharge tube projects a tube d having the upper end closed by means of a cone shaped .when a very high atomizing the liquid to be dried.

Patented Nov.]l5,1921.

Application filed February 24, 1920. Serial No. 360,907.

top piece 0, whereby the milk leaving the discharge tube 2) is transformed into an an- .annularly shaped jet produced by the closed cone top 0.

The feeding tube d is surrounded by a larger tube 7'' through which hot air or any other gas capable of acting as a drying agent for the atomized liquid is supplied. The drying medium may leave the feeding tube through the open end of the same, as indicated in the drawing, or special discharge orifices may be provided therefor. The pressure medium maybe fed throughgapipe of smaller dimensions than the tube a? which, in such a case, serves mainly for supporting the coned top a the oflice of which is to'transform the outflowing liquid into an annularly shaped or umbrella like jet. The employment of a much smaller feeding pipe for the pressure medium may be advisable pressure is required for am aware that other changes may be made Withoutdeparting from the spirit of my invention.

' What I claim as my invention and desire tosecure by Letters Patent of the United States is 1. In a device for atomizing and drying or evaporating milk and other liquid substances, thecombination of a discharge tube for the substance to be treated with a member projecting into the discharge openin of said discharge tube so as to transform the discharge flow of liquid into an annular jet, said member having discharge openings for a pressure medium within said member, said discharge openings being positioned in proximity to the discharge opening of said tube and another member for feeding a drying medium, the discharge opening of said last named feeding member being disposed below said discharge openings for said pressure medium, whereby the substance to be treated is first atomized and then subjected to the dryin action of said drying medium.

2. n apparatus for atomizing and dry- :I mg or evaporating milk or other liquid substances, comprising, incombinati'on, a container'for the liquid to be treated, a discharge tube Within the bottom of said container, a

feeding tube-fo apressure'medium, a coned top on said feedingttube, said coned top projecting into the discharge opening of said discharge tube so as to transform the out- How, of said discharge vtube into an annular for a gaseous drying afore. named feeding tube for the pressure medium and terminating a distance below tube, Wherebythe I f In wltness whereof I have signed this specification in the presence of two witnesses.

PHILIPP MULLER.

Witnesses: v MARIE LUISE PoLrrz, -MARIE COMMIsHAU. 

